Abstract
This is a progress report for project No. 29 of the Joint A.S.T.M.-A.S.M.E. Committee on Effect of Temperature on the Properties of Metals. One of the activities undertaken by project No. 29 has been the study of certain aspects of the graphitization problem applying to the carbon-molybdenum casting steels used in welded piping structures. The steels so involved are of the types covered in A.S.T.M. Specifications A217 covering Pressure Alloy Castings Suitable for Fusion Welding such as valves, flanges, fittings, and other pressure-containing parts for high-temperature services. This investigation was undertaken in co-operation with the Manufacturers Standardization Society (M.S.S.) of the Valve and Fitting Industry, through a committee representing the constituent manufacturers engaged in the founding and manufacture of steel valves, flanges, and fittings.
